JPH0524568B2 - - Google Patents
Info
- Publication number
- JPH0524568B2 JPH0524568B2 JP2620885A JP2620885A JPH0524568B2 JP H0524568 B2 JPH0524568 B2 JP H0524568B2 JP 2620885 A JP2620885 A JP 2620885A JP 2620885 A JP2620885 A JP 2620885A JP H0524568 B2 JPH0524568 B2 JP H0524568B2
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- optical
- photodetector
- lens
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000003287 optical effect Effects 0.000 claims description 41
- 238000001514 detection method Methods 0.000 claims description 10
- 238000005070 sampling Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims 2
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 9
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000013500 data storage Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000000699 topical effect Effects 0.000 description 1
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2620885A JPS61187130A (ja) | 1985-02-15 | 1985-02-15 | 光デイスク装置 |
DE8686101750T DE3678311D1 (de) | 1985-02-15 | 1986-02-12 | Optisches plattengeraet. |
EP86101750A EP0191467B1 (en) | 1985-02-15 | 1986-02-12 | Optical disc apparatus |
US06/829,066 US4744069A (en) | 1985-02-15 | 1986-02-13 | Optical disc apparatus with access system having object lens control |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2620885A JPS61187130A (ja) | 1985-02-15 | 1985-02-15 | 光デイスク装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61187130A JPS61187130A (ja) | 1986-08-20 |
JPH0524568B2 true JPH0524568B2 (zh) | 1993-04-08 |
Family
ID=12187030
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2620885A Granted JPS61187130A (ja) | 1985-02-15 | 1985-02-15 | 光デイスク装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61187130A (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4475833B2 (ja) * | 2001-03-02 | 2010-06-09 | 日本テキサス・インスツルメンツ株式会社 | ミラー検出信号生成回路 |
-
1985
- 1985-02-15 JP JP2620885A patent/JPS61187130A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS61187130A (ja) | 1986-08-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |